Frequency and power factor measurement based on Programmable logic machine piece
abstract: In the industry realm, the examination charged barbed wire net frequency has the very important and actual meaning with the power factor.But more by the square, the anti- interference measures the charged barbed wire net frequency doughtily with the power factor is technique design that direction that research the personnel is continuously.For satisfying by the square, the anti- interference measures doughtily, programmable logic in adoption in this design machine a diagraph for realizing charged barbed wire net frequency with power factor. Design in outer circle electric circuit, choose to use to spread to feel the machine get the charged barbed wire net electric voltage, electric current signal, then proceed the electric current/ electric voltage transformation, throw away wave, enlarge with compare over the zero, from but get the square a signal. At the core part that control, the adoption VHDL hardware describes the language proceed to FPGA machine an on-line diagraph for of function describing with designing, then basing on FPGA machine piece realizing frequency and power factor.That system makes measure the precision, anti- interference with the FPGA machine a core for being used as control strong, high speed, dependable etc. advantage.
Keywords: Frequency measurement; Power factor measurement; Programmable logic machine piece; The hardware describes the language
